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Components for Decentralized Process-Centered Environments

以流程为中心的去中心化环境的组件

基本信息

批准号：
9301092
负责人：
Gail Kaiser
金额：
$ 21.7万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1993
资助国家：
美国
起止时间：
1993-09-01 至 1996-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301092&HistoricalAwards=false
关键词：
Components Decentralized Process Centered Environments

项目摘要

A process is a partially ordered set of steps to be followed in developing a software system. Processes may vary across organizations and systems. A process-centered environment provides computer-aided support for a range of project-specific processes. The general goals of research in process-centered environments are to devise useful notations for specifying processes and to investigate ways in which environments may assist users in carrying out processes. The Marvel process-centered environment is tailored by a rule-based process model, where each rule defines a process step and states the condition for initiating the step and the result of finishing the step. The permitted sequencing among steps is implicit in their conditions and results. The environment enforces the specified process and assists users in satisfying the conditions of steps. Recent work has concentrated on concurrency control for teams of users, and on evolution of processes while they are in progress. Both are prerequisites for scaling up process-centered environments. This project addresses four problems; (1) translation of higher-level process modeling formalisms into rules for execution, (2) formal notations for coordination modeling and the interaction of corresponding concurrency control algorithms with process assistance mechanisms, (3) requirements placed on environment frameworks by process and coordination, and possible protocols for interfacing process and coordination components to a range of existing classes of frameworks, and (4) decentralized environment architectures that permits a degree of site autonomy for different process and coordination needs.

过程是开发软件系统时要遵循的一组部分有序的步骤。流程可能因组织和系统而异。以过程为中心的环境为一系列特定于项目的过程提供计算机辅助支持。在以过程为中心的环境中的研究的一般目标是设计有用的符号指定的过程和调查的方式，环境可以帮助用户在执行过程。 Marvel以流程为中心的环境由基于规则的流程模型定制，其中每个规则定义一个流程步骤，并说明启动步骤的条件和完成步骤的结果。步骤之间允许的顺序隐含在其条件和结果中。环境强制执行指定的过程，并帮助用户满足步骤的条件。最近的工作集中在并发控制的用户团队，并在进程的演变，而他们正在进行中。这两者都是扩展以流程为中心的环境的先决条件。该项目解决四个问题;（1）将更高级别的过程建模形式主义转换为用于执行的规则，（2）用于协调建模的形式符号以及相应的并发控制算法与过程辅助机制的交互，（3）过程和协调对环境框架的要求，以及将流程和协调组件与一系列现有框架类别接口的可能协议，以及（4）分散式环境架构，允许针对不同流程和协调需求的一定程度的站点自主性。